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AspServer.exe Trojan Agent Analysis

Updated 1 month ago
Checked by Malaware Check
AspServer.exe

Technical Analysis

File Name AspServer.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.213.174
Database Version 2025-04-12 05:00:21 UTC
⚠

Trojan.Win32.Agent.oa!s1

Malware family: Agent

Trojan Agent malware disguises itself as legitimate software while performing unauthorized activities including data theft and providing remote system access to threat actors.
N/A
Detection Rate
666,561
File Size (bytes)
2025-04-12
Analysis Date

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File Identification

Hash Type Value Action
MD5
6e2c0f75f431409d7a0054b707c2a7c8
SHA1
f5db3b204e6bec994f314dc9ae31191d8d250358
SHA256
0ae8ea41926225c7cb2319d34ad498ac6f55363b9b7ba361ce1fff1c008031aa
SHA512
d967572d4706305f1afcedecf7eaee830c46b6543c7cca3ba6b965255b270b6dabf3b14c160f899c588ec9b16984a1b5d660a7d0bc89dc8c31358438ad3db194
ImpHash
2d7847e1b6289ade3c7ab13a185fad64

PE Analysis

Basic Information

▼
Icon
Hash: 08fba3ab8bc3a14ce841370e47e42e2e
Fuzzy: 5bb90db27cb37255044e406da35a4ce7
dHash: d2a026e29083aae0
Image Base 0x00400000
Entry Point 0x0059a001
Compilation Time 1970-01-01 00:00:00
Checksum 0x00000000 (Actual: 0x000b0e25)
OS Version 4.0
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 7 libraries
kernel32, advapi32, gdi32, oleaut32, user32, comdlg32, ole32
Exports 0 functions
Resources 10 Resources
Sections 6 Sections

Version Information

▼
FileDescription AspServer
FileVersion 1, 0, 0, 0
LegalCopyright Copyright (C) Lhkjw.Com
NetBox Homepage http://www.lhkjw.com
ProductVersion 1, 0, 0, 0
Release DateTime Dec 02 01:52:57 2011
Translation 0x0409 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
test 0x00001000 1,011,712 bytes 400,384 bytes 8.00 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE A560F33F2CDC905D98E3041DEC3FBF14
data 0x000f8000 643,072 bytes 247,296 bytes 8.00 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 3F82894416FE67E2E72F9F387010E244
.rsrc 0x00195000 8,192 bytes 1,536 bytes 3.74 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE EBCE033B05543F1744395571E97C0FF0
.idata 0x00197000 12,288 bytes 4,096 bytes 7.89 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 60A9D4C539D3BB5F89ACA2DEF0D0FB2D
.aspack 0x0019a000 12,288 bytes 9,728 bytes 5.09 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 026EE3DCA7198294747A2117879D731D
.adata 0x0019d000 4,096 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
Entropy Analysis Alert

3 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

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Total Resources: 10 (5,410 bytes)
Resource Type Count Total Size Percentage
RT_ICON 5 3,720 bytes
68.8%
RT_MESSAGETABLE 1 220 bytes
4.1%
RT_GROUP_ICON 2 82 bytes
1.5%
RT_VERSION 1 692 bytes
12.8%
RT_MANIFEST 1 696 bytes
12.9%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

No valid SignedData structure was found.

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Trojan.Win32.Agent.oa!s1 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Agent.oa!s1 without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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